JoJo no Kimyou na Bouken (TV), Ore no Kanojo to Osananajimi ga Shuraba Sugiru Recommendations
These 2 shows are not similar in regards of plot or characters. The main themes are severely different.
But Oreshura has a lot of jokes that are built on references from JoJo. The comedy is hilarious if you've already seen JoJo, and if you haven't, you'll miss out on a lot of them.
So if you've watched JoJo, give Oreshura a try. And if you're looking to give Oreshura a shot, consider watching JoJo first. As stated in the anime; "at least watch part 4".
Oreshura has JOJO references in it, so its a great way to link what the characters are talking about so people can understand what JOJO is about.
an its an easy way for people that Finished all 4 Parts + OVAs to say "is that a JOJO Reference??? an make a meme out of it lo. an the shows alright i guess.
Only watch Oreshura if you watched/read JoJo, otherwise you probably won't enjoy it as much. Though with that said, its still better than most generic rom-coms on its own.